Initial code for CRUD properties.
Release 0.9.0.
Fix interface definition.
Release 0.9.1.
Get direct property. Release 0.9.2.
Update getProperty interface.
Refactor getAttribute. Release 0.9.3.
[#1202] Add CRUD interface for configuration.
Release 0.10.1.  Add parent attribute for all sections.
Fix failing test.
Merge with master.
Upgrade version to 0.10.2